diff options
| -rw-r--r-- | target-arm/cpu.h | 13 | ||||
| -rw-r--r-- | target-arm/kvm-consts.h | 41 | ||||
| -rw-r--r-- | target-arm/kvm.c | 9 |
3 files changed, 43 insertions, 20 deletions
diff --git a/target-arm/cpu.h b/target-arm/cpu.h index 9f110f15b6..c3f007fc53 100644 --- a/target-arm/cpu.h +++ b/target-arm/cpu.h @@ -21,6 +21,8 @@ #include "config.h" +#include "kvm-consts.h" + #if defined(TARGET_AARCH64) /* AArch64 definitions */ # define TARGET_LONG_BITS 64 @@ -497,17 +499,6 @@ void armv7m_nvic_complete_irq(void *opaque, int irq); (((cp) << 16) | ((is64) << 15) | ((crn) << 11) | \ ((crm) << 7) | ((opc1) << 3) | (opc2)) -/* Note that these must line up with the KVM/ARM register - * ID field definitions (kvm.c will check this, but we - * can't just use the KVM defines here as the kvm headers - * are unavailable to non-KVM-specific files) - */ -#define CP_REG_SIZE_SHIFT 52 -#define CP_REG_SIZE_MASK 0x00f0000000000000ULL -#define CP_REG_SIZE_U32 0x0020000000000000ULL -#define CP_REG_SIZE_U64 0x0030000000000000ULL -#define CP_REG_ARM 0x4000000000000000ULL - /* Convert a full 64 bit KVM register ID to the truncated 32 bit * version used as a key for the coprocessor register hashtable */ diff --git a/target-arm/kvm-consts.h b/target-arm/kvm-consts.h new file mode 100644 index 0000000000..6f56f726d3 --- /dev/null +++ b/target-arm/kvm-consts.h @@ -0,0 +1,41 @@ +/* + * KVM ARM ABI constant definitions + * + * Copyright (c) 2013 Linaro Limited + * + * Provide versions of KVM constant defines that can be used even + * when CONFIG_KVM is not set and we don't have access to the + * KVM headers. If CONFIG_KVM is set, we do a compile-time check + * that we haven't got out of sync somehow. + * + * This work is licensed under the terms of the GNU GPL, version 2 or later. + * See the COPYING file in the top-level directory. + */ +#ifndef ARM_KVM_CONSTS_H +#define ARM_KVM_CONSTS_H + +#ifdef CONFIG_KVM +#include "qemu/compiler.h" +#include <linux/kvm.h> + +#define MISMATCH_CHECK(X, Y) QEMU_BUILD_BUG_ON(X != Y) + +#else +#define MISMATCH_CHECK(X, Y) +#endif + +#define CP_REG_SIZE_SHIFT 52 +#define CP_REG_SIZE_MASK 0x00f0000000000000ULL +#define CP_REG_SIZE_U32 0x0020000000000000ULL +#define CP_REG_SIZE_U64 0x0030000000000000ULL +#define CP_REG_ARM 0x4000000000000000ULL + +MISMATCH_CHECK(CP_REG_SIZE_SHIFT, KVM_REG_SIZE_SHIFT) +MISMATCH_CHECK(CP_REG_SIZE_MASK, KVM_REG_SIZE_MASK) +MISMATCH_CHECK(CP_REG_SIZE_U32, KVM_REG_SIZE_U32) +MISMATCH_CHECK(CP_REG_SIZE_U64, KVM_REG_SIZE_U64) +MISMATCH_CHECK(CP_REG_ARM, KVM_REG_ARM) + +#undef MISMATCH_CHECK + +#endif diff --git a/target-arm/kvm.c b/target-arm/kvm.c index 6e5cd36fae..309845630b 100644 --- a/target-arm/kvm.c +++ b/target-arm/kvm.c @@ -23,15 +23,6 @@ #include "cpu.h" #include "hw/arm/arm.h" -/* Check that cpu.h's idea of coprocessor fields matches KVM's */ -#if (CP_REG_SIZE_SHIFT != KVM_REG_SIZE_SHIFT) || \ - (CP_REG_SIZE_MASK != KVM_REG_SIZE_MASK) || \ - (CP_REG_SIZE_U32 != KVM_REG_SIZE_U32) || \ - (CP_REG_SIZE_U64 != KVM_REG_SIZE_U64) || \ - (CP_REG_ARM != KVM_REG_ARM) -#error mismatch between cpu.h and KVM header definitions -#endif - const KVMCapabilityInfo kvm_arch_required_capabilities[] = { KVM_CAP_LAST_INFO }; |